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Finding the Fourth Proportional to 152,419.58, 210,336.80 and 84,436.44

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Solution

The fourth proportional to 152,419.58, 210,336.80 and 84,436.44 is: 116,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,419.58 : 210,336.80 = 84,436.44 : x
  2. Step 2: Convert to fraction form
    152,419.58/210,336.80 = 84,436.44/x
  3. Step 3: Cross multiply
    152,419.58x = 210,336.80 × 84,436.44
  4. Step 4: Simplify right side
    152,419.58x = 17,760,090,592.99
  5. Step 5: Solve for x
    x = 17,760,090,592.99/152,419.58
  6. Step 6: Final answer
    x = 116,521.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.